Specify this act if you want to provide fulltext search capabilities to
your model via Hyper Estraier. This assumes a setup and running Hyper
Estraier node accessible through the HTTP API provided by the EstraierPure
Ruby module (which is bundled with this plugin).

The act supplies appropriate hooks to insert, update and remove documents
from the index when you update your model data, create new objects or
remove them from your database. For the initial indexing a convenience
class method reindex! is provided.

That way you can configure separate connections for each environment. The
values shown above represent the defaults. If you don’t need to
change any of these it is safe to not specify the estraier hash at
all.